WMLiberty does seem to have a few assumptions built into it. One of these could be that the hwnd being passed is that of a top-level window. People have had problems subclassing controls only. In many cases, they could have subclassed the parent window and been able to determine the originating control because many messages bubble up. However, the key-press messages don't bubble. You may have found a work-around for the control-only problem._________________Brent

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